chore(deps): update dependency microsoft.testing.extensions.codecoverage to 18.9.0

Author: renovate[bot]

Directory.Packages.props

@@ -7,7 +7,7 @@
   <ItemGroup Label="Microsoft">
     <PackageVersion Include="Microsoft.SourceLink.GitHub" Version="10.0.300" />
     <PackageVersion Include="System.Configuration.ConfigurationManager" Version="10.0.9" />
-    <PackageVersion Include="Microsoft.Testing.Extensions.CodeCoverage" Version="18.8.0" />
+    <PackageVersion Include="Microsoft.Testing.Extensions.CodeCoverage" Version="18.9.0" />
   </ItemGroup>
   <ItemGroup Label="Roslynator">
     <PackageVersion Include="Roslynator.Analyzers" Version="4.15.0" />